libstdc++-v3/testsuite/27_io/fpos/mbstate_t/1.cc

   1 // 1999-09-20 bkoz
   2
   3 // Copyright (C) 1999-2013 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 3, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20
  21 // 27.4.3 template class fpos
  22
  23 #include <cwchar> // for mbstate_t
  24 #include <ios>
  25 #include <cstring>
  26 #include <testsuite_hooks.h>
  27
  28 void test01()
  29 {
  30   bool test __attribute__((unused)) = true;
  31
  32   typedef std::mbstate_t state_type;
  33   state_type state01 = state_type();
  34   state_type state02 = state_type();
  35
  36   std::streampos pos01(0);
  37   std::streampos pos02(0);
  38
  39   // 27.4.3.1 fpos members
  40   // void state(state_type s);
  41   // state_type state();
  42
  43   // XXX Need to have better sanity checking for the mbstate_t type,
  44   // or whatever the insantiating type for class fpos happens to be
  45   // for streampos, as things like equality operators and assignment
  46   // operators, increment and deincrement operators need to be in
  47   // place.
  48   pos01.state(state02);
  49   state01 = pos01.state();
  50   test = std::memcmp(&state01, &state02, sizeof(state_type)) == 0;
  51   VERIFY( test );
  52 }
  53
  54 int main()
  55 {
  56   test01();
  57   return 0;
  58 }